Oil and water well strainer.



No. 895,733. PATBNTED AUG. 11, 1908.

H. R. DECKER. OIL AND WATER WELL STRAINER.

APPLICATION FILED AUG. l, 1906.

rri i nur es .iflib "Y P, ma ga e l e a sil i iieinitni i @FMQE,

GIL AZED WATER WEZL STRAINER.

Applicationfiled August 1, 1906. Serial No. 328,7'i8.

citizen of the United States, residing at Houston, in the county of Harris and State of Texas, have invented certain new and useful Improvements in Oil and Water il ell Strainers, of which the following" is a specilication.

My invention relates to strainers for use in Wells, and consists of a tube having perforations therein with their inner portions smaller in diameter than their outer portions and forming; shoulders in said perforations, the Walls of the outer portions oi the perforations being beveledinwardly to the shoulders to receive a slotted or perforated piste that forms the strainer to ex elude sand and other foreign substances butpermitting fluids such as oil or water to pass therethrmigh and into the tube to be conveyed to the top of the Well.

My invention contemplates riveting the plate referred to securel in toe recessed portion of the perforation, by which manner of fastening it becomes substantially a part of the strainer tube and materially strengthens it Where it is weak, at the perforations,

The construction and advantages ol'. my improved strainer will be described in detail hereinz'ifter and illustrated in the accompany ing drawings, in which "Figure 1 is a view of a fragment of a strainer tube partly broken away and in section showing my inmrovements combined therewith, Fig. 2, a detail view of one oi" the disks, Fig. 3, a cross section of the disk shown in Fig. 2, Fig, i, a view of a modified form of disk, and Fig. a cross section of the disk shown in Fig. 4. I

In the drawings similar relerened characters indicate correspomling parts thi'oughont the several views. i

A indicates a tube or pipe i i which is drilled a number of holes ii having their outer portions l'ormed larger in dianrcler than the inner portions said outer portions hing indicatcd at I; and are adapted to receive strainer disks t. which seat against shoulders 1) formed by the dill'erences in the diameter of the inner and outer portions of the holes, and are held in positihn b upsetting the metal of the pipe surrouinling the holes B, as shown at D, so as to elcneh the disks C in position.

in the diskshown in Figs. i, 2 and 3, paral- Speeification of Letters Patent.

Eatented Aug. 11, 1908.

! lel slots E elcd sides with the narrowest opening of the slot towards the exterior of the strainer tube, while in the form shown in Figs. 4 and 5 having beveled sides with the smaller ends of I the holes towards the exterior of the strainer asin the construction of strainer having slots. The beveled holes and slots prevent the obstruction thereof by particles of sand or clay that might be carried therethrough by the fluid.

Among the advantages of this form' of strainer are thatthe outer surface of the strainer tube has no depressions therein to become clogged by accunmlating mud and sand, which'is the case in strainers in which the strainer surfaces set back from the outer surface of the tube, while thcdepression that is formed at the inner ends of the holes B provide tor -the reception of a plug of cement or other plastic material G should it be desired to; convert the strainer tube into a well tube for further boring after the exhaustion of a stratum of oil or water. By setting the sti 'ainer disk into a depression such as shown are an enlarged strainer surface in noporthin to the diameter of the hole B in the tube build in position and lit snugly the recesses 1n the tube, because of the beveled walls of the holes in the, lube and thebeveled sides of the disk, the tube is strengthened where needed at the places where perforated. It will be apparent also that the corresponding beveled sides of the disks and their retaining holes'insures the disks fitting closely in the holes so that a lluid tight fit is insured and the oil or water can not enter the strainer except through the strainer openings. i

llaving thus described my invention what I claim is l. in an oil and water Well strainer, a tube having hole's therein hai'ing their outer p01- tions larger in diameter than their inner porlions, and perforated disks seated in the outer portions of said holes, said disks being held in position by upsetting theinetal of the tube to (lunch them, substantially as shown and described.

2. In an oiland water well strainer, a tub lurving holes therein having their outer portions larger in diameter than their inner por tions, and slotted disks seated in the oute:

portions of said holes, said disks being held in round holes F are made in the disk, the holes' is;secured and, as the disks C are securely are provided therein having bevposition by upsetting the metal of the tube to clench them, substantially as shown and described. I

3. In an oil and water well strainer, a tube having holes therein having their outer portions larger in diameter than their inner portions, and perforated disks seated in the outer portions of said holes, said disks being held in position by upsetting the metal of the tube to cleneh them, the perforations in said disks having beveled sides with the narrowest porti ,ns towards the exterior surface of the tub substantially as shown and described.

4. In/ an oil and water well strainer, a tube having holes therein having their outer portions larger in diameter than their inner portions, and slotted disks seated in the outer portions of said holes, said disks being held 1n position by upsetting the metalr'of the tube to clench them, the slots in said disks having beveled sides with the narrowest portions to- Wards the exterior surface of the tube, substantially as shown and described.

5. In an oil and Water well strainer, a tube having holes therein with beveled walls, and perforated disks having beveled sides seated 111 said holes and secured therein by upsetting the metal of the tube to clench them, substantially as shown and described.

2&6. In an oil and water well strainer, a tube having holes therein with beveled walls, and slotted disks having beveled sides seated in said holes and secured therein by upsetting the metal of the tube to clench them, substantially as shown and described.

7. In an oil and water well strainer, a tube having holes therein with their outer por tions larger in diameter than their inner portions, said outer ortions having outwardlyflaring Walls, anc perforated disks having beveled sides to fit snugly said flaring walls and secured therein by upsetting the metal of the tube to clench them, the perforations in said disks having beveled sides with the nar- 5 rowest portions towards the exterior surface of the tube, substantially as shown and described.

8. In an oil and water well strainer, a tube having holes therein with their outer p rtions 5 larger in diameter than their inner portions, said outer portions having outwardly flaring walls and slotted disks having beveled sides to fit snugly said flaring walls and secured therein by upsetting the metal of the tube 5.5

to cleneh them, the slots in said disks having beveled sides with the narrowest portions towards the exterior surface of the tube, substantially as shown and described.

In testimony whereof I hereto aflix my signature in the presence of two witnesses.

HARRY R. DECKER.

Witnesses:

A. M. DAVIDSON, M. E. KEENAN. 

